diff --git a/spark-etl/build.sbt b/spark-etl/build.sbt
index 0f9a7d95b5..a7604c5a05 100644
--- a/spark-etl/build.sbt
+++ b/spark-etl/build.sbt
@@ -9,6 +9,7 @@ libraryDependencies ++= Seq(
 test in assembly := {}
 
 assemblyMergeStrategy in assembly := {
+  case s if s.startsWith("META-INF/services") => MergeStrategy.concat
   case "reference.conf" => MergeStrategy.concat
   case "application.conf" => MergeStrategy.concat
   case "META-INF/MANIFEST.MF" => MergeStrategy.discard